Bernard Shaw - Full Speed.

Please slow down, Take things easy,
Going too fast makes one feel queasy.
No one can enjoy a life that is too fast,
Sometimes it is better to be late and come in last.
Than to go at full speed all day long,
When you go too fast things can go wrong.
A slow walk is better than haste,
You have more time for things of your taste.
Remember the Tortoise and the Hare,
Do not be in a hurry to do more than your share.
The thing I am trying to say please heed,
It is easier to go slowly than at full speed.

Bernard Shaw

http://www.poemhunter.com/poem/full-speed/